I tested with this new version on Selenium simulator (SmppSim).

The behavior is a little changed, now instead of freezing forever, it stops for 20 seconds or so and then the Error event fires with an exception of Socket Timed out, and then the unbind also fails because now the socket is closed.

Is ...

- All I do is just insert into a database, that's all.

- I expect ALT.SMS to be receiving in asynchronous mode, ie: it should not block on my code.

- I already suspected this, and retried the test several times where the event did nothing, and it still hung with the simulator.

- Also while this ...

Here is the smppsim.props file I used to test.

http://pastebin.com/Ep6KRH9U

The threshold seems to be above 1000 messages, around 1200 or so.
It seems to happen more when both the simulator and receiver are on localhost.

Hello,
I am trying to use this wonderful library to build a simple windows service that receives delivery receipts and inserts them into a database.

I am testing the service using the smppsim application available here:
http://www.seleniumsoftware.com/

I use a simple script to send 1000 messages ...